Every intervention Outliyr has scored for libido, ranked by its BioHarmony score for this use case rather than its overall rating. The number beside each name is how well that one thing works for libido; the tier beside it is what it is worth once safety, cost and effort are counted across everything else.
27 of 84 evaluated interventions score 3.0+ out of 10 for libido · 8 comparisons
For libido, TRT (Testosterone Replacement Therapy) scores 8.0/10 because Cochrane 2024 reports 43 studies, 11,419 participants; conservative counterweight for sexual-dysfunction claims outside classical primary or secondary hypogonadism. Snyder 2016 points in the…
Read the TRT (Testosterone Replacement Therapy) report →Tongkat Ali earns 6.3/10 for libido because Leisegang 2022 is the cleanest verified anchor for this report. The existing rationale points to this narrower claim: the cited study used the correct the…
Read the Tongkat Ali report →Libido lands at 6.2/10 because Red Light Therapy may support libido indirectly through sleep, mood, testosterone-linked pathways, and male fertility biology, but direct libido RCTs are thin. Salman Yazdi 2014 supports sperm…
Read the Red Light Therapy report →Melanotan II has one of the more direct human libido and erection signals among gray-market peptides. In men with organic erectile dysfunction, MT-II produced 12 erections across 19 treated episodes versus 1…
Read the Melanotan II report →Infrared Sauna earns 6.0/10 for libido because Kihara 2002 is the cleanest verified anchor for this report. The existing rationale points to this narrower claim: Libido effects are inconsistent: relaxation and improved…
Read the Infrared Sauna report →The evidence base for tirzepatide's impact on libido is limited, with no primary randomized trial targeting sexual function; the 5.8/10 use-case score reflects indirect signals from weight-loss and hormonal studies such as…
Read the Tirzepatide report →For libido, Saffron earns 5.5/10 because the evidence points to a plausible use case without proving a universal response. Zhang et al. 2025 is the best anchor here because it reports 25…
Read the Saffron report →Shilajit libido earns 5.5/10 because Biswas 2010 anchors the most relevant signal. Shilajit fits libido when purified resin is matched to hormones, sperm parameters, strength fatigue, bone markers, or energy tracking. The…
Read the Shilajit report →Mechanistically, Ashwagandha scores 5.5/10 for libido because the evidence points to a plausible use case without proving a universal response. Fatima et al. 2024 is the best anchor here because it reports…
Read the Ashwagandha report →Libido scores 5.5/10 because Semaglutide can improve sexual function indirectly through weight loss and insulin improvement, but it can also reduce drive through low calories, reward dampening, nausea, or fatigue. Moiz 2024…
Read the Semaglutide report →Libido is the one use with real human evidence. PT-141 is FDA-approved for acquired low sexual desire in premenopausal women, where two Phase 3 trials in about 1,267 women improved desire and…
Read the PT-141 (Bremelanotide) report →On libido, Zone 2 Cardio deserves 5.0/10 because Lang 2024 makes the claim plausible but incomplete. The existing rationale points to this narrower claim: Better cardiovascular health, body composition, energy, and mood…
Read the Zone 2 Cardio report →Potential benefit is indirect through metabolic and hormonal improvements; no verified libido trial exists for F+Q or D+Q.
Read the Senolytics report →Libido is the strongest non-fertility signal and the main reason people seek kisspeptin-10, though the trial evidence used kisspeptin-54 rather than the kisspeptin-10 form on sale. In men with hypoactive sexual desire…
Read the Kisspeptin-10 report →No direct libido evidence was verified. Any sexual-health effect would be indirect through body composition, training, or overall nutrition.
Read the Essential Amino Acids report →No direct libido evidence; indirect benefit could come through sleep quality.
Read the Glycine report →No direct libido evidence. Secondary effects through energy, circulation, and confidence remain anecdotal.
Read the Whole-Body Vibration report →No direct libido evidence exists. PCOS responders may see indirect hormonal normalization, but metformin is not a sexual-performance drug.
Read the Metformin report →No direct libido evidence. Any performance benefit does not translate into sexual-function evidence.
Read the Ca-AKG (Calcium Alpha-Ketoglutarate) report →Erectile function evidence appears vascular and angiogenic rather than broad libido modulation. Hadanny 2018 reports vascular endothelial gains with HBOT. Score modestly and avoid implying hormonal libido enhancement. Patients with vascular erectile…
Read the Hyperbaric Oxygen Therapy report →Libido sits at a moderate score because the pathway is plausible but the direct evidence is thin and confounded. Restoring endogenous LH and testosterone should support libido in theory, and some users…
Read the Gonadorelin (GnRH) report →INSUFFICIENT_EVIDENCE for libido benefit and reproductive-axis warnings argue for caution.
Read the Rapamycin report →Erectile function is, paradoxically, the use with the strongest randomized evidence in the entire VIP file, but it is narrow and route-specific. A multicentre double-blind placebo-controlled trial of intracavernosal VIP plus phentolamine…
Read the VIP (Vasoactive Intestinal Peptide) report →Libido is part of the marketed androgen story but has no human evidence; any effect would depend on a testosterone change that has never been demonstrated in people.
Read the Pine Pollen report →Exercise can support sexual health through vascular and metabolic pathways. Overtraining or poor recovery can blunt libido, so the net effect depends on dose.
Read the Norwegian 4×4 report →Animal data: Khamidova 2005 showed restoration of stress-impaired spermatogenesis and fertilizing capacity in male rats (PMID 16047676) and Kuzubova 2004 reported dose-dependent proceptivity and receptivity changes (PMID 15341065). No human libido RCT.
Read the Bromantane (Ladasten) report →GH restoration may indirectly support sexual function in deficient or metabolically impaired adults, but tesamorelin has no direct libido trial evidence. The score stays exploratory.
Read the Tesamorelin report →Nothing matches those filters.
Head-to-head reports and category rankings that name a winner on this use case.
Shilajit at 7.4, phosphatidylserine at 7.3, tongkat ali at 7.0. TRT ranks seventh at 5.7 and wins nine of the eleven use cases outright. That inversion is the…
The scores tie at 6.3 and 6.4 and every shared subrating sits within half a point, so the numbers decide nothing. Access and evidence decide it. Gonadorelin is…
Kisspeptin-10 scores 6.4 and TRT 5.7, and TRT still wins 13 of the 15 use cases both reports score. The higher number reflects dependency and reversibility, not effect.…
Melanotan I is the safer tanning peptide and it scores higher, 6.2 against 4.6. Both darken skin through the same receptor. Melanotan II hits three more receptors, which…
They solve different problems and the scores hide that. Oxytocin scores 6.5 against PT-141's 5.4, mostly on safety and cost. PT-141 still wins libido 5.5 against 2.5. Oxytocin…
Shilajit scores 7.4 and ashwagandha 6.8, but that gap is the least useful number here. These two do different jobs. Shilajit is the mineral and androgen play: male…
Ashwagandha scores 6.8 and tongkat ali 7.0, so the overall numbers do not decide it. Pick ashwagandha when stress, anxiety, or sleep is the complaint: its subratings there…
PT-141 scores 5.4 and melanotan II 4.6, and both land in the neutral tier. PT-141 is the defensible one. It targets the brain receptor that drives desire, it…
TRT (Testosterone Replacement Therapy), at 8.0 out of 10 for libido. For libido, TRT (Testosterone Replacement Therapy) scores 8.0/10 because Cochrane 2024 reports 43 studies, 11,419 participants; conservative counterweight for sexual-dysfunction claims outside classical primary or secondary hypogonadism.
Of the top-scoring options, Glycine is the least expensive at about $2 a month, scoring 4.5 out of 10 for libido.
27 of the 84 interventions evaluated for libido score 3.0 out of 10 or better, which is the cut-off for appearing on this page.
